“…It is known that several rhizobacteria species increase root biomass by changing the auxin balance and, in consequence, the signaling process, by either producing and secreting the auxin themselves (Dobbelaere et al, 1999;Patten and Glick, 2002;Idris et al, 2007) or changing its homeostasis inside plant cells (Spaepen et al, 2007;Kurepin et al, 2014). The same positive effect of bacterial IAA has been observed in tomato (Pastor et al, 2014), sesame (Sesamum indicum; Kumar et al, 2009), maize (Fallik et al, 1989), wheat (Egamberdieva, 2009), and other crops.…”